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Proceedings Paper

Magnetoresistive sensors for surveillance and remote sensing
Author(s): Yacine Dalichaouch; Alexander R. Perry; Brian W. Whitecotton; Charles R. Moeller; Peter V. Czipott
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Paper Abstract

Quantum Magnetics (QM) has developed a sensing array using small and lightweight magnetoresistive (MR) sensors. These sensors, which operate at room temperature with high sensitivity and wide bandwidth, provide new operational performance capabilities. The wide bandwidth makes them ideal for both passive and active detection techniques. Using a DSP-based electronics developed by QM, we have been able to operate these sensors with an unprecedented noise performance at low frequencies. Recent tests using an MR room temperature gradiometer show that its resolution equals that of a fluxgate room-temperature gradiometer we have previously developed. These results represent an important development for both attended and unattended ground sensor applications since MR sensors cost about ten times less than fluxgate sensors.

Paper Details

Date Published: 21 February 2001
PDF: 6 pages
Proc. SPIE 4232, Enabling Technologies for Law Enforcement and Security, (21 February 2001); doi: 10.1117/12.417555
Show Author Affiliations
Yacine Dalichaouch, Quantum Magnetics, Inc. (United States)
Alexander R. Perry, Quantum Magnetics, Inc. (United States)
Brian W. Whitecotton, Quantum Magnetics, Inc. (United States)
Charles R. Moeller, Quantum Magnetics, Inc. (United States)
Peter V. Czipott, Quantum Magnetics, Inc. (United States)


Published in SPIE Proceedings Vol. 4232:
Enabling Technologies for Law Enforcement and Security
Simon K. Bramble; Edward M. Carapezza; Lenny I. Rudin; Lenny I. Rudin; Simon K. Bramble, Editor(s)

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